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                [TOC] ## 概述 常用函數 ``` QFileInfo() //無參數,后面可以用 setFile() 函數設置文件名 QFileInfo(const QString & file) //根據相對路徑或絕對路徑的字符串,訪問文件 QFileInfo(const QFile & file) //從一個 QFile對象提取該文件的信息 QFileInfo(const QDir & dir, const QString & file) //根據路徑對象和相對它的文件名,訪問文件夾信息 QFileInfo(const QFileInfo & fileinfo) //復制構造函數 bool QFileInfo::?exists() const bool ?isFile() bool ?isDir() bool ?isSymLink() QString ?symLinkTarget() //如果是符號鏈接,就返回鏈接指向的原本文件夾或文件,否則返回空串 qint64 ?size() QString QFileInfo::?filePath() const //含路徑和文件名,可能是相對的,也可能是絕對的路徑文件名 QString QFileInfo::?absoluteFilePath() const //返回絕對路徑文件名 QString QFileInfo::?canonicalFilePath() const //返回權威路徑文件名 ```
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